Strain rate influence on hardening and damage characteristics of composite materials

Evgeny Lomakin, Boris Fedulov, Alexey Fedorenko

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The paper presents models to characterize the dependence of hardening and strength characteristics of composite materials on damage and strain rate. The results of experimental studies of the behavior of composite materials in a wide range of strain rates are analyzed, and some regularities are determined. On the base of a failure criterion which includes the dependence of failure characteristics on damage and the rate of damage as well, taking into account the dependence of stiffness characteristics on the damage parameters, the stress–strain curves are determined for different strain rates, and they correlate quite well with the results of experimental studies. A method for the experimental determination of the material’s parameters is proposed. Some cases of complex, non-monotonic loading and unloading of composite materials are analyzed.

Original languageEnglish
Pages (from-to)1875-1887
Number of pages13
JournalActa Mechanica
Volume232
Issue number5
DOIs
Publication statusPublished - May 2021

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